topic Not possible to run offload compiled code on CPU only ? in Software Archive

Not possible to run offload compiled code on CPU only ?

vincent_b_ — Tue, 22 Jul 2014 09:10:55 GMT

Hi,

Sorry, if that question was previously asked. I couldn't find any hint about it.

I have a compiled offload binary, is it possible to make it run on CPU only with some environment variable?
I saw something about setting "export OFFLOAD_DEVICES=" but then I get the following error :
offload error: cannot offload to MIC - device is not available

Thanks for your help.

You are correct in that

Kevin_D_Intel — Tue, 22 Jul 2014 09:57:20 GMT

You are correct in that defining the variable to an empty value causes the offloaded code to execute on the CPU but with the following exception. The offload default is mandatory so you must add the optional specifier on the offload pragma/directive to be able to force the execution on the CPU using the OFFLOAD_DEVICES= setting.

Thanks Kevin,

vincent_b_ — Tue, 22 Jul 2014 13:03:23 GMT

Thanks Kevin,

That did the trick.

Great! You're welcome.

Kevin_D_Intel — Tue, 22 Jul 2014 13:21:38 GMT

Great! You're welcome.